nn garantisco sul codice
codice:
$directory = "dir/".$nome; 
$open_handle = opendir($directory);
echo "<table><tr>\n";
$cont=1;
while($read = readdir($open_handle)) { 
	if($read != "." && $read != ".." && $read != "_vti_cnf") { 
		if ($cont % 5 = 0)
			echo "</tr><tr>\n";
		echo "<td><img src=\"$directory/$read\" width=\"100\" height=\"75\" border=\"0\" alt=\"\"></td>"; 
		$cont++;

	} 
} 
echo "</tr></table>\n";
closedir($open_handle);